No
Nobelium
উপাদান 102 · 259.101 u
Nobelium is notable for preferring the +2 oxidation state, unlike most actinides.
Physical Properties
| পদাৰ্থ | 259.101 u |
| ঘনত্ব | 9.9 g/cm³ |
| Melting Point | 1100.0 K |
| আকৃতি | Metallic (predicted) |
| State at Room Temp | Solid |
রাসায়নিক বৈশিষ্ট্যসমূহ
| ইলেকট্ৰোনেজেটিভিটি | 1.3 (Pauling) |
| 1- তম আইনাইজেশন শক্তি | 642.0 kJ/mol |
| ইলেকট্ৰন | -223.22 kJ/mol |
| Oxidation States | +2, +3 |
প্ৰমাণপত্ৰৰ বৈশিষ্ট্য
| ইলেকট্ৰন | [Rn] 5f14 7s2 |
ডিস্কভাৰী
| আবিষ্কাৰ কৰা হৈছে | Joint Institute for Nuclear Research (Dubna) |
| আবিষ্কাৰৰ বছৰ | 1966 |
| অৱস্থান | Dubna, Russia |
| Named After | Named after Alfred Nobel, inventor of dynamite and founder of the Nobel Prize |
বিষয়ে Nobelium
Nobelium's discovery was disputed between American and Soviet laboratories for decades. It unusually prefers the +2 oxidation state, unlike most actinides which prefer +3.
Uses & Applications
No practical applications. Scientific research only.
মজা কথা
Nobelium's discovery was one of the most contentious in chemistry, with three countries claiming priority over decades.
আইসোটোপ
| Mass Number | অভাৱ | হাফ-লাইফ | Stable |
| 253 | - | 1.62 minutes | No |
| 259 | - | 58 minutes | No |
ইলেকট্ৰন
[Rn] 5f14 7s2